Hangouts switched from NPAPI to WebRTC in Chrome back in 2014, but still uses plugins (NPAPI or ActiveX) for other browsers. Hangouts depends on some non-standa

Hangouts switched from NPAPI to WebRTC in Chrome back in 2014, but still uses plugins (NPAPI or ActiveX) for other browsers. Hangouts depends on some non-standard WebRTC functionality in Chrome. Google has had almost three years to adapt to other browsers' WebRTC stacks, but it is not a priority because the plugins have still worked (in Firefox < 52 and IE). https://plus.google.com/103171586947853434456/posts/39TCW3PcLye https://plus.google.com/103171586947853434456/posts/39TCW3Pc...